# Bitrates Question

**URL:** <https://forum.livepeer.org/t/bitrates-question/1188>\
**Category:** Transcoders\
**Created:** [December 30, 2020, 1:50pm UTC](https://forum.livepeer.org/t/bitrates-question/1188 "2020-12-30T13:50:12Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![videoDAC](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.livepeer.org/videodac/32/630_2.png) [@videoDAC](https://forum.livepeer.org/u/videoDAC)\
**Post date:** [December 30, 2020, 1:50pm UTC](https://forum.livepeer.org/t/bitrates-question/1188/1 "2020-12-30T13:50:12Z")

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I have a question about bitrates.

If I stream a 1080p stream at 3000kbps into a B, and the B gets 720p, 576p, 360p, 240p and 144p encoded streams from the O/T, then what are the bitrates of all the hls streams being served by the B?

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**Author:** ![yondon](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.livepeer.org/yondon/32/192_2.png) [@yondon](https://forum.livepeer.org/u/yondon)\
**Post date:** [January 1, 2021, 6:56pm UTC](https://forum.livepeer.org/t/bitrates-question/1188/2 "2021-01-01T18:56:51Z")

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If the B is configured to use [profile presets](https://github.com/livepeer/lpms/blob/master/ffmpeg/videoprofile.go#L60-L92), then the renditions will be encoded using the hardcoded bitrate for each of the presets. The link provided highlights the profile preset definitions including their bitrates.

The B can also be configured to use custom profiles with user defined bitrates for each rendition. See the [transcoding options](https://github.com/livepeer/go-livepeer/blob/master/doc/transcodingoptions.md) docs for details on how to configure B to use custom profiles.